CN104099136B - Multi-element combustion compound type coal gasification device and process method - Google Patents
Multi-element combustion compound type coal gasification device and process method Download PDFInfo
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- CN104099136B CN104099136B CN201410380442.3A CN201410380442A CN104099136B CN 104099136 B CN104099136 B CN 104099136B CN 201410380442 A CN201410380442 A CN 201410380442A CN 104099136 B CN104099136 B CN 104099136B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a multi-element combustion compound type coal gasification device which comprises a finance body. A main nozzle ejector leading to a gasification chamber in the furnace body is arranged at the top of the furnace body, a plurality of auxiliary nozzle ejectors with the tail ends leading to the gasification chamber in the furnace body are arranged around the main nozzle ejector on the furnace body. Each auxiliary nozzle ejector comprises first sleeve, a second sleeve, a third sleeve and a fourth sleeve which are sequentially sleeved from inside to outside, independent and not communicated, a gap is reserved between every two adjacent sleeves to form an annular cavity, the annular cavities are communicated with the bottom of the first sleeve and the outside, and a pulverized coal inlet communicated with an internal space of the first sleeve is formed in the top of the first sleeve. The side wall of the second sleeve is provided with an auxiliary nozzle gas inlet, and the side wall of the third sleeve is provided with an auxiliary nozzle liquid inlet. A water-cooling jacket is arranged in the fourth sleeve, and the outer wall of the fourth sleeve is provided with a water-cooling jacket inlet and a water-cooling jacket outlet communicated with the water-cooling jacket respectively. The multi-element combustion compound type coal gasification device enables pulverized coal combustion to be full, and the gas effective ingredients and conversion rate are high.
Description
Technical field
The present invention relates to a kind of coal gasification production technique device, especially a kind of polynary burning composite briquette gasification installation and processing method.
Background technology
At present, still there is drawback in domestic and international high-effective gas gasifying device (such as Chinese patent application 201310465335.6): 1. in coal dust gasification device, top-jet-type fine coal burner is single or branched vertical lower spray, and coal dust firing is insufficient, and carbon residue is higher; 2. in coal dust gasification device, portion is branched to spray formula fine coal burner in a combustion chamber, and temperature of combustion is high, and gas effective constituent is lower; 3. produce a large amount of waste water, waste gas in gasification installation system, effectively can not recycle and cause larger pressure to efforts at environmental protection, cause waste simultaneously.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of polynary burning composite briquette gasification installation and processing method are provided.
For achieving the above object, the present invention adopts following technical proposals:
A kind of polynary burning composite briquette gasification installation, comprise body of heater, described body of heater top is provided with the main burner injector that passes straight through to vaporizer in body of heater, body of heater is provided with some auxiliary burning nozzle injectors that can switch use around main burner injector, the end of described auxiliary burning nozzle injector also passes straight through to vaporizer in body of heater;
Described auxiliary burning nozzle injector comprises the first sleeve, the second sleeve, the 3rd sleeve and the 4th sleeve that are set in together successively from inside to outside, separate between each sleeve, not connected, gap is had to form annular chamber between adjacent sleeve, the bottom of described each sleeve flushes, and the bottom of each annular chamber and the first sleeve communicates with the external world, the top of each sleeve then upwards extends from the inside to the outside successively, and the top being in inner sleeve exceeds the top of the outer sleeve be adjacent; Each sleeve is bolted each other; Described first sleeve top is provided with the coal dust import communicated with the first sleeve internal space; Second sleeve lateral wall is provided with the auxiliary burning nozzle gas feed communicated with the annular chamber between first, second sleeve, and the 3rd sleeve lateral wall is provided with the auxiliary burning nozzle liquid-inlet communicated with the annular chamber between second, third sleeve; Be provided with water-cooling jacket in 4th sleeve, the 4th sleeve outer wall is provided with the water-cooling jacket import that communicates with water-cooling jacket respectively and water-cooling jacket exports.
The bottom of described first sleeve is auxiliary burning nozzle discharge, is provided with flight III in auxiliary burning nozzle discharge.
The bottom of the annular chamber between first, second sleeve described is auxiliary burning nozzle pneumatic outlet, is provided with flight IV in auxiliary burning nozzle pneumatic outlet.
The bottom of the annular chamber between second, third sleeve described is auxiliary burning nozzle liquid exit, is provided with flight V in auxiliary burning nozzle liquid exit.
Described water-cooling jacket import is positioned at the top of water-cooling jacket outlet.
A water blast gun corresponding with the syngas outlet on furnace body wall is provided with in described body of heater.
In described body of heater, the adjacent top of slag notch is provided with a broken apart device of pulp water.
A kind of polynary burning composite briquette gasification technological process, comprising:
From coal slurry, processing wastewater, waste gas and the waste oil collected in the coal dust of feed coal system and system, delivered to main burner injector and the auxiliary burning nozzle injector of gasifying furnace device respectively by line of pipes;
The centerfire of main burner injector, after igniting, priming bar is extracted out, go into operation oxygen with go into operation periodic off-gases ratio combustion be warming up to 750 DEG C ~ 850 DEG C, system pressure be increased to 1.0MPa time, coal dust sprays from main burner injector, with technical oxygen/vapor mixing high-temp combustion;
Meanwhile auxiliary burning nozzle injector is sent into technical oxygen and coal dust and is carried out mixed firing, the coal slurry of collection, processing wastewater, waste gas and waste oil is switched to the corresponding passage of auxiliary burning nozzle sends in stove to burn after system cloud gray model is normal;
Various material anoxycausis in vaporizer generates synthetic gas and slag, part slag runs into water wall cooled and solidified and is attached on water wall, major part slag enters synthetic gas cooling room with gas by vaporizer end opening, after Quench by synthetic gas chilling ring device, synthetic gas is converted again;
Slag formed solid slag along downtake enter in synthesis gas washing water-bath carry out purification and washing and slag cooling, discharge from lower cinder notch after the fragmentation of pulp water shredder assembly, synthetic gas after purification and washing along downtake and upcast ring cavity rise and refrigerated separation arrives baffling seal cap device again baffle separation after, seek syngas outlet feeding subsequent processing.
Described protection gas protects gas import to send into by annular cavity, carries out cooling protection and outlet along annular cavity top is guided on burner injector scavenging line by connecting tube to furnace shell, and do and purge protection gas, second stage employ saves source of the gas.
The present invention is the further technological improvement to Chinese patent application 201310465335.6, and the other technologies feature in the present invention is identical with Chinese patent application 201310465335.6.Concrete technical scheme after the application is combined with Chinese patent application 201310465335.6 is as follows:
Polynary burning composite briquette gasification installation, comprise a body of heater, the top of body of heater is provided with " 4+1 " formula multi-element material burner injector, top in body of heater is set with water wall, cavity in water wall forms combustion gasification room, form the annular cavity of sealing between described water wall and body of heater, the outer wall of body of heater is provided with a protection gas import communicated with annular cavity, be provided with the outlet of a protection gas at the top of body of heater and be incorporated into by pipeline on described main burner injector pipeline; Described water wall connects synthetic gas chilling ring bottom it; Described synthetic gas chilling ring connects a downtake, a vapor riser is set with outside downtake, synthetic gas refrigerated separation ring cavity and baffle separation space is formed between gas downtake and upcast and baffling sealing cap, described furnace body outer wall is also provided with the syngas outlet communicated with the external world, and syngas outlet anti-caking block apparatus; The bottom of body of heater is provided with the broken apart device of pulp water and slag notch.
Annular cavity between described water wall and body of heater is sealed by water wall upper-lower seal ring.
Described " 4+1 " formula multi-element material burner injector comprises a main burner injector and four auxiliary burning nozzle injectors.Main burner injector is coal dust burner, and its structure comprises the priming bar, the first sleeve, the second sleeve, the 3rd sleeve, the 4th sleeve, the 5th sleeve that are set in together successively from inside to outside, separate between each sleeve, not connected; Priming bar, the first sleeve, the second sleeve, the 3rd sleeve, the 4th sleeve, the 5th sleeve successively from top to bottom, and priming bar and first, second and third sleeve and and fourth, fifth sleeve between be bolted; Be provided with at the sidewall of the first described sleeve periodic off-gases import of lighting a fire/go into operation, be provided with at the sidewall of the second sleeve oxygen inlet of lighting a fire/go into operation; Technical oxygen/steam inlet is provided with at the sidewall of the 3rd sleeve; Coal pipe import is provided with between the 3rd, the 4th sleeve; Carbon dioxide import is provided with at the 5th sleeve; Outermost is water wall coil pipe; Between the second described sleeve and the 3rd sleeve, end is provided with rotary flow deflector.Auxiliary burning nozzle injector is environment-friendly type burner, and its structure comprises the first sleeve, the second sleeve, the 3rd sleeve, the 4th sleeve that are set in together successively from inside to outside, separate between each sleeve, not connected; First sleeve, the second sleeve, the 3rd sleeve, the 4th sleeve successively from top to bottom, and be bolted each other; Coal dust import is provided with at the top of the first described sleeve; Be provided with gas (technical oxygen/system off gas) import at the sidewall of the second sleeve, be provided with liquid (coal slurry/waste water/waste oil) import at the sidewall of the 3rd sleeve; Water-cooling jacket is provided with at the 4th sleeve outer wall.
The compound burner emitter construction of described " 4+1 " formula multi-element material, the charging of a main burner injector coal dust, four each passage materials of environment-friendly type auxiliary burning nozzle can need to switch use at any time according to technique.
The water wall of described vaporizer is two sections of turnover integrated coil water wall, it comprises some heat transfer tubes, described heat transfer tube coiling arrangement formation one cavity, welded seal between adjacent heat exchange tubes, described cavity inner wall is according to the refractory masses of the smooth temperature Cover treatment different thickness of work, described refractory masses is fixed with staple, and described staple is along the cavity inner wall evenly staggered distribution in radiation formula; The thermocouple wire of temperature detection is embedded with in described flame retardant coating; Two sections of described turnover integrated coil water wall adopt suspension strut to be fixed in furnace shell.
Described protection gas system, while the carbon dioxide of annular cavity plays cooling effect to furnace shell, is guided to again on main burner injector scavenging line, and do and purge protection gas, second stage employ saves source of the gas.
Described synthetic gas chilling train, is completed by chilling ring spray water and jacketed type downtake and Quench water-bath acting in conjunction, reaches the effect to synthetic gas cooling washing.
Syngas outlet anti-caking block apparatus prevents from the dust in synthetic gas from accumulating in exit by the injection of high pressure water to result in blockage.
Synthetic gas separation system, is after carrying out refrigerated separation by the ring cavity of downtake and upcast, then reaches separating effect by the spiral baffling of baffling sealing cap.
The broken apart device of pulp water by the breaking member in slag device, slag is crushed to necessarily little size to be discharged by lower cinder notch.
Processing method is as follows:
From coal slurry, processing wastewater, waste gas, the waste oil collected in the coal dust of feed coal system and system, main burner injector and the auxiliary burning nozzle injector of gasifying furnace device is delivered to respectively by line of pipes, the centerfire of main burner injector, after igniting, priming bar is extracted out, go into operation oxygen with go into operation periodic off-gases ratio combustion be warming up to 750 DEG C ~ 850 DEG C, system pressure be increased to 1.0MPa time, coal dust sprays from main burner injector, with technical oxygen/vapor mixing high-temp combustion, meanwhile auxiliary burning nozzle injector is sent into technical oxygen and coal dust and is carried out mixed firing, the coal slurry of collection, processing wastewater, waste gas, waste oil can be switched to the corresponding passage of auxiliary burning nozzle sends in stove to burn after system cloud gray model is normal, various material anoxycausis in vaporizer generates synthetic gas, slag etc., part slag runs into water wall cooled and solidified and is attached on water wall, major part slag enters synthetic gas cooling room with gas by vaporizer end opening, after Quench by synthetic gas chilling ring device, synthetic gas is converted again, slag forms solid slag and enters in synthesis gas washing water-bath along downtake and carry out purification and washing, slag cooling is discharged from lower cinder notch after the fragmentation of pulp water shredder assembly, synthetic gas after purification and washing along downtake and upcast ring cavity rise and refrigerated separation arrive baffling seal cap device again baffle separation after, seek syngas outlet and send into subsequent processing.
Described protection gas protects gas import to send into by annular cavity, carries out cooling protection and outlet along annular cavity top is guided on burner injector scavenging line by connecting tube to furnace shell, and do and purge protection gas, second stage employ saves source of the gas.
Water screen system, be two sections of turnover integrated coil water-cooling structures, pump circulation, the shortening residence time of water coolant in burner hearth, temperature-controllable is adjustable.
Temperature monitoring system device, thermocouple wire is all imbedded in water wall refractory materials, and refractory materials is fixed on water wall coil pipe by staple, and Refractory Thermal Conductivity is higher, the temperature of vapourizing furnace burner hearth can be reflected exactly, and protect thermocouple wire, long service life; Connect sealed structure replacing for convenience detach, safe and reliable.
The invention has the beneficial effects as follows:
The present invention is under the prerequisite meeting process unit demand: 1. Novel filter tip emitter construction " 4+1 " combination, allow coal dust firing more fully, gas effective constituent and transformation efficiency high; 2. turn waste into wealth and will precipitate coal slurry/processing wastewater/waste gas/waste oil and the recycling of fluid organism, environmental protection and energy saving, easy to operate in system, operating safety is stablized.
Accompanying drawing explanation
Fig. 1 one-piece construction schematic diagram of the present invention;
The enlarged view of Fig. 2 water wall part;
The one-piece construction figure of the main burner injector of Fig. 3;
Fig. 4 is the sectional view of main burner injector part A;
The one-piece construction figure of Fig. 5 auxiliary burning nozzle injector;
Fig. 6 is the sectional view of auxiliary burning nozzle injector part B;
Fig. 7 device for detecting temperature structure iron;
In figure: 1 main burner injector, 2 auxiliary burning nozzle injectors, 3 suspended bearers, 4 water wall, 5 protection compression ring chambeies, 6 protection gas imports, 7 lower sealing rings, 8 syngas outlet anti-caking block apparatus, 9 syngas outlet, 10 upcasts, 11 downtakes, 12 synthetic gas Quench washing water-baths, the broken apart device of 13 pulp water, 14 slag notches, 15 baffling sealing caps, 16 spinning disks, 17 synthetic gas chilling rings, 18 vaporizers, 19 upper sealing rings, 20 protection gas introduction pipes, 21 water wall refractory materialss, 22 refractory materials staples, 23 main burner first sleeves, 24 main burner second sleeves, 25 main burner the 3rd sleeves, 26 main burner the 4th sleeves, 27 main burner the 5th sleeves, 28 priming bar interfaces, 29 valves, 30 light a fire/go into operation periodic off-gases import, 31 light a fire/go into operation oxygen inlet, 32 technical oxygen/steam inlet, 33 coal dust imports, 34 carbon dioxide imports, 35 water coolant import/exports, 36 priming bares, 37 light a fire/go into operation periodic off-gases outlet, 38 light a fire/go into operation oxygen outlet, 39 technical oxygen/vapour outlet, 40 discharges, 41 carbon dioxide gas outlet, 42 flights II, 43 auxiliary burning nozzle first sleeves, 44 auxiliary burning nozzle second sleeves, 45 auxiliary burning nozzles the 3rd sleeve, 46 auxiliary burning nozzles the 4th sleeve, 47 auxiliary burning nozzle coal dust imports, 48 auxiliary burning nozzle gases (technical oxygen/system off gas) import, 49 auxiliary burning nozzle liquid (coal slurry/waste water/waste oil) import, 50 water-cooling jacket imports, 51 water-cooling jacket outlets, 52 auxiliary burning nozzle discharges, 53 auxiliary burning nozzle gases (technical oxygen/system off gas) export, 54 auxiliary burning nozzle liquid (coal slurry/waste water/waste oil) export, 55 flights III, 56 flights IV, 57 flights V, 58 thermocouple wires, 59 fixed connecting pieces, 60 adapters, 61 thermocouple wire lead-in wires, 62 tongued and grooved flanges, 63 sealing flange covers, 64 temperature signal terminal boxes.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in figs. 1-7, a kind of polynary burning composite briquette gasification installation, comprise a body of heater, the top of body of heater is provided with " 4+1 " formula multi-element material burner injector and main burner injector 1 and auxiliary burning nozzle injector 2, top in body of heater is set with water wall 4, cavity in water wall 4 forms combustion gasification room 18, the annular cavity 5 of sealing is formed between described its body of heater of water wall 4, the outer wall of body of heater is provided with a protection gas import 6 communicated with annular cavity 5, be provided with the outlet of a protection gas at the top of body of heater and be incorporated into by pipeline 20 on described main burner injector pipeline, the bottom of described water wall 4 connects synthetic gas chilling ring 17, described synthetic gas chilling ring 17 connects a downtake 11, a vapor riser 10 is set with outside downtake 11, synthetic gas refrigerated separation ring cavity and baffle separation space is formed between gas downtake 11 and upcast 10 and baffling sealing cap 15, described furnace body outer wall is also provided with the syngas outlet 9 communicated with the external world, and syngas outlet anti-caking block apparatus 8, the bottom of body of heater is provided with the broken apart device 13 of pulp water and slag notch 14.
Annular cavity 5 between water wall 4 and body of heater is sealed by water wall upper sealing ring 19 and lower sealing ring 7.
" 4+1 " formula multi-element material burner injector, comprises a main burner injector 1 and four auxiliary burning nozzle injectors 2.Main burner injector 1 arranges body of heater top and passes straight through to vaporizer 18, four auxiliary burning nozzles injections 2 in body of heater and is evenly arranged at around main mouth injector 1, and can switch use, and the end of auxiliary burning nozzle injector 2 also passes straight through to vaporizer 18 in body of heater.
Main burner injector 1 is coal dust burner, its structure comprises the priming bar 36, main burner first sleeve 23, main burner second sleeve 24, main burner the 3rd sleeve 25, main burner the 4th sleeve 26 and main burner the 5th sleeve 27 that are set in together successively from inside to outside, separate between each sleeve, not connected; Priming bar interface 28, valve 29, main burner first sleeve 23, main burner second sleeve 24, main burner the 3rd sleeve 25, main burner the 4th sleeve 26 and main burner the 5th sleeve 27 successively from top to bottom, and priming bar and first, second and third sleeve of main burner and and main burner fourth, fifth sleeve between be bolted; Be provided with at the sidewall of described main burner first sleeve 23 periodic off-gases import 30 of lighting a fire/go into operation, be provided with at the sidewall of main burner second sleeve 24 oxygen inlet 31 of lighting a fire/go into operation; Technical oxygen/steam inlet 32 is provided with at the sidewall of main burner the 3rd sleeve 25; Coal pipe import 33 is provided with between main burner the 3rd, the 4th sleeve; Carbon dioxide import 34 is provided with at main burner the 5th sleeve 27; Outermost is water wall coil pipe import 35; Between described main burner second sleeve 24 and main burner the 3rd sleeve 25, end is provided with flight II 42.
Main burner injector 1 bottom end face is followed successively by the priming bar 36 of suit, periodic off-gases of lighting a fire/go into operation outlet 37, oxygen outlet 38 of lighting a fire/go into operation, technical oxygen/vapour outlet 39, discharge 40 and carbon dioxide gas outlet 41 from the inside to the outside.
Auxiliary burning nozzle injector 2 is environment-friendly type burner, its structure comprises auxiliary burning nozzle first sleeve 43 be set in together successively from inside to outside, auxiliary burning nozzle second sleeve 44, auxiliary burning nozzle the 3rd sleeve 45 and auxiliary burning nozzle the 4th sleeve 46, separate between each sleeve, not connected, gap is had to form annular chamber between adjacent sleeve, the bottom of described each sleeve flushes, and the bottom of each annular chamber and auxiliary burning nozzle first sleeve 43 communicates with the external world, the top of each sleeve then upwards extends from the inside to the outside successively, and the top being in inner sleeve exceeds the top of the outer sleeve be adjacent, respectively be bolted each other, the coal dust import 47 communicated with auxiliary burning nozzle first sleeve internal space is provided with at the top of described auxiliary burning nozzle first sleeve, be provided with at the sidewall of auxiliary burning nozzle second sleeve gas (technical oxygen/system off gas) import 48 that the annular chamber between first, second sleeve of auxiliary burning nozzle communicates, be provided with at the sidewall of auxiliary burning nozzle the 3rd sleeve liquid (coal slurry/waste water/waste oil) import 49 that the annular chamber between second, third sleeve of auxiliary burning nozzle communicates, be provided with water-cooling jacket in auxiliary burning nozzle the 4th sleeve, be provided with the water-cooling jacket import 50 that communicates with water-cooling jacket and water-cooling jacket exports 51 at auxiliary burning nozzle the 4th sleeve outer wall.Water-cooling jacket import 20 is positioned at the top of water-cooling jacket outlet 21.
The bottom of auxiliary burning nozzle first sleeve is auxiliary burning nozzle discharge 52, is provided with flight III 55 in auxiliary burning nozzle discharge.
The bottom of the annular chamber between first, second sleeve of auxiliary burning nozzle is that auxiliary burning nozzle gas (technical oxygen/system off gas) exports 53, is provided with flight IV 56 in auxiliary burning nozzle pneumatic outlet.
The bottom of the annular chamber between second, third sleeve of auxiliary burning nozzle is that auxiliary burning nozzle liquid (coal slurry/waste water/waste oil) exports 54, is provided with flight V 57 in auxiliary burning nozzle liquid exit.
Each flight can make the material (comprising coal dust, gas and liquid) passed through accelerate flowing, forms spiralling, improves the gasification efficiency of body of heater.
The compound burner emitter construction of " 4+1 " formula multi-element material, the charging of main burner injector 1 coal dust, four each passage materials of environment-friendly type auxiliary burning nozzle 2 can need to switch use at any time according to technique.
The water wall 4 of vaporizer 18 is two sections of turnover integrated coil water wall, it comprises some heat transfer tubes, described heat transfer tube coiling arrangement formation one cavity, welded seal between adjacent heat exchange tubes, described cavity inner wall is according to the refractory materials 21 of the smooth temperature Cover treatment different thickness of work, described refractory materials 21 is fixed with staple 22, and described staple 22 is along the cavity inner wall evenly staggered distribution in radiation formula.The thermocouple wire 58 of temperature detection is embedded with in described water wall refractory materials 21; Two sections of described turnover integrated coil water wall adopt suspended bearer 3 to be fixed in furnace shell.
Thermocouple wire 58 is connected with a temperature signal terminal box 64 through to its fixing threaded hole, fixed connecting piece 59, adapter 60, tongued and grooved flanges 62 by thermocouple wire lead-in wire 61, and described temperature signal terminal box 64 is connected with temperature monitoring system.Tongued and grooved flanges 62 is provided with sealing flange cover 63.
Protection gas system is that while the carbon dioxide of annular cavity 5 plays cooling effect to furnace shell, guided to again on main burner injector 1 scavenging line, do and purge protection gas, second stage employ saves source of the gas.
Synthetic gas chilling train, is completed by chilling ring 17 spray water and jacketed type downtake 11 and Quench washing water-bath 12 acting in conjunction, reaches the effect to synthetic gas cooling washing.
Syngas outlet anti-caking block apparatus 8 prevents from the dust in synthetic gas from accumulating in exit by the injection of high pressure water (water blast gun) to result in blockage.
Synthetic gas separation system, is after carrying out refrigerated separation by the ring cavity of downtake 11 and upcast 10, then reaches separating effect by flight 16 baffling of baffling sealing cap 15.
The broken apart device 13 of pulp water is existing apparatus, is by the breaking member in slag device, slag is crushed to necessarily little size to be discharged by lower cinder notch.
From coal slurry, processing wastewater, waste gas, the waste oil collected in the coal dust of feed coal system and system, main burner injector 1 and the auxiliary burning nozzle injector 2 of gasifying furnace device is delivered to respectively by line of pipes, the centerfire of main burner injector, after igniting, priming bar 36 is extracted out, go into operation oxygen with go into operation periodic off-gases ratio combustion be warming up to 750 DEG C ~ 850 DEG C, system pressure be increased to 1.0MPa time, coal dust sprays from main burner injector discharge 40, with technical oxygen/vapor mixing high-temp combustion, meanwhile auxiliary burning nozzle injector 2 sends into technical oxygen and coal dust carries out mixed firing, the coal slurry of collection, processing wastewater, waste gas, waste oil can be switched to the corresponding passage of auxiliary burning nozzle sends in stove to burn after system cloud gray model is normal, various material anoxycausis in vaporizer generates synthetic gas, slag etc., part slag runs into water wall 4 cooled and solidified and is attached on water wall, major part slag enters synthetic gas cooling room with gas by vaporizer end opening, after Quench by synthetic gas chilling ring 17 device, synthetic gas is converted again, slag forms solid slag and enters in synthesis gas washing water-bath 12 along downtake 11 and carry out purification and washing, slag cooling is discharged from lower cinder notch 14 after pulp water shredder assembly 13 fragmentation, synthetic gas after purification and washing along downtake 11 and upcast 10 ring cavity rises also refrigerated separation arrive baffling sealing cap 15 device again baffle separation after, seek syngas outlet 9 and send into subsequent processing.
Protection gas protects gas import 6 to send into by annular cavity, carries out cooling protection and outlet along annular cavity 5 top is guided on burner injector scavenging line by connecting tube 20 to furnace shell, and do and purge protection gas, second stage employ saves source of the gas.
Water screen system, be two sections of turnover integrated coil water-cooling structures, pump circulation, the shortening residence time of water coolant in burner hearth, temperature-controllable is adjustable.
Temperature monitoring system device, thermocouple wire 58 all to imbed in water wall refractory materials 21, and refractory materials 21 is fixed on water wall 4 coil pipe by staple 22, and Refractory Thermal Conductivity is higher, the temperature of vapourizing furnace burner hearth can be reflected exactly, and protect thermocouple wire, long service life; Connect sealed structure replacing for convenience detach, safe and reliable.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (8)
1. a polynary burning composite briquette gasification installation, comprise body of heater, described body of heater top is provided with the main burner injector that passes straight through to vaporizer in body of heater, it is characterized in that, body of heater is provided with the auxiliary burning nozzle injector that four can switch use around main burner injector, the end of described auxiliary burning nozzle injector also passes straight through to vaporizer in body of heater;
Described auxiliary burning nozzle injector comprises the first sleeve, the second sleeve, the 3rd sleeve and the 4th sleeve that are set in together successively from inside to outside, separate between each sleeve, not connected, gap is had to form annular chamber between adjacent sleeve, the bottom of described each sleeve flushes, and the bottom of each annular chamber and the first sleeve communicates with the external world, the top of each sleeve then upwards extends from the inside to the outside successively, and the top being in inner sleeve exceeds the top of the outer sleeve be adjacent; Each sleeve is bolted each other; Described first sleeve top is provided with the coal dust import communicated with the first sleeve internal space; Second sleeve lateral wall is provided with the auxiliary burning nozzle gas feed communicated with the annular chamber between first, second sleeve, and the 3rd sleeve lateral wall is provided with the auxiliary burning nozzle liquid-inlet communicated with the annular chamber between second, third sleeve; Be provided with water-cooling jacket in 4th sleeve, the 4th sleeve outer wall is provided with the water-cooling jacket import that communicates with water-cooling jacket respectively and water-cooling jacket exports.
2. polynary burning composite briquette gasification installation as claimed in claim 1, is characterized in that, the bottom of described first sleeve is auxiliary burning nozzle discharge, is provided with flight III in auxiliary burning nozzle discharge.
3. polynary burning composite briquette gasification installation as claimed in claim 1, is characterized in that, the bottom of the annular chamber between first, second sleeve described is auxiliary burning nozzle pneumatic outlet, is provided with flight IV in auxiliary burning nozzle pneumatic outlet.
4. polynary burning composite briquette gasification installation as claimed in claim 1, is characterized in that, the bottom of the annular chamber between second, third sleeve described is auxiliary burning nozzle liquid exit, is provided with flight V in auxiliary burning nozzle liquid exit.
5. polynary burning composite briquette gasification installation as claimed in claim 1, is characterized in that, described water-cooling jacket import is positioned at the top of water-cooling jacket outlet.
6. polynary burning composite briquette gasification installation as claimed in claim 1, is characterized in that, is provided with a water blast gun corresponding with the syngas outlet on furnace body wall in described body of heater.
7. polynary burning composite briquette gasification installation as claimed in claim 1, is characterized in that, in described body of heater, the adjacent top of slag notch is provided with a broken apart device of pulp water.
8. utilize a polynary burning composite briquette gasification technological process for polynary burning composite briquette gasification installation described in claim 1, it is characterized in that, comprising:
From coal slurry, processing wastewater, waste gas and the waste oil collected in the coal dust of feed coal system and system, delivered to main burner injector and the auxiliary burning nozzle injector of gasifying furnace device respectively by line of pipes;
The centerfire of main burner injector, after igniting, priming bar is extracted out, go into operation oxygen with go into operation periodic off-gases ratio combustion be warming up to 750 DEG C ~ 850 DEG C, system pressure be increased to 1.0MPa time, coal dust sprays from main burner injector, with technical oxygen and vapor mixing high-temp combustion;
Meanwhile auxiliary burning nozzle injector is sent into technical oxygen and coal dust and is carried out mixed firing, the coal slurry of collection, processing wastewater, waste gas and waste oil is switched to the corresponding passage of auxiliary burning nozzle sends in stove to burn after system cloud gray model is normal;
Various material anoxycausis in vaporizer generates synthetic gas and slag, part slag runs into water wall cooled and solidified and is attached on water wall, major part slag enters synthetic gas cooling room with gas by vaporizer end opening, after Quench by synthetic gas chilling ring device, synthetic gas is converted again;
Slag formed solid slag along downtake enter in synthesis gas washing water-bath carry out purification and washing and slag cooling, discharge from lower cinder notch after the fragmentation of pulp water shredder assembly, synthetic gas after purification and washing along downtake and upcast ring cavity rise and refrigerated separation arrives baffling seal cap device again baffle separation after, seek syngas outlet feeding subsequent processing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410380442.3A CN104099136B (en) | 2014-08-04 | 2014-08-04 | Multi-element combustion compound type coal gasification device and process method |
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| CN201410380442.3A CN104099136B (en) | 2014-08-04 | 2014-08-04 | Multi-element combustion compound type coal gasification device and process method |
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| CN104099136A CN104099136A (en) | 2014-10-15 |
| CN104099136B true CN104099136B (en) | 2015-04-08 |
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